ARCHITECTURAL ROOFING Effective September 2007

Snap-on-Batten

ARCHITECTURAL ROOFING Effective September 2007

GRAVITY LOAD TABLE(PSF)

substrate / width / 3.0' / 3.5' / 4.0' / 4.5' / 5.0'
24 ga. steel / 12" / 95 / 70 / 54 / 42 / 34
24 ga. steel / 18" / 64 / 47 / 36 / 28 / 23
22 ga. steel / 12" / 128 / 94 / 72 / 57 / 46
22 ga. steel / 18" / 85 / 63 / 48 / 38 / 31
.032” alum. / 12" / 68 / 50 / 38 / 30 / 24
.032” alum. / 18" / 43 / 31 / 24 / 19 / 15
.040” alum. / 12" / 99 / 73 / 56 / 44 / 36
.040” alum. / 18" / 62 / 46 / 35 / 28 / 22

DESIGN INFORMATION

The minimum panel width for tapered panels is 1 ½” and the maximum panel width is 20”. The maximum length for such panels is 40'.

Double Lock panels must be installed on a solid substrate.

The minimum recommended roof pitch is 3:12.

Maximum panel length is 65'.

Minimum panel length is 4'.

Notes:

1. Allowable loads are based on 1980 edition of AISI specifications.

2. Deflection is limited to L/240 of span.

3. Loads are based on spans of 3 or more.

4. FY = 50 ksi for steel panels.

5. Uplift values based on attachment to 16 ga. purlins with 2 #10-16 x 1" SD ST screws.

Snap-on Batten

ARCHITECTURAL ROOFING

MATERIAL, THICKNESS, & WIDTH / WT./SQ. PLAIN / WT./SQ. PAINTED / METAL SPECIFICATION / FINISH
ALUMINUM
0.032" (12")
0.040" (12")
0.032" (16")
0.040" (16")
0.032" (18")
0.040" (18")
0.032" (20")
0.040" (20") / 75.4 lb.
94.3 lb.
67.8 lb.
84.8 lb.
65.4 lb.
81.8 lb.
63.3 lb.
79.1 lb. / 76.9 lb.
95.4 lb.
69.2 lb.
85.8 lb.
66.7 lb.
82.7 lb.
64.6 lb.
80.1 lb. / 3105H14 or equal (20 ksi yield strength) aluminum alloy conforming to ASTM B 209. / plain: mill finish.
painted: two-coat 70% Kynar® 500/ Hylar® 5000; 0.5 mil two-coat polyester backer.
GALVANIZED STEEL
24 ga. (12")
22 ga. (12")
24 ga. (16")
22 ga. (16")
24 ga. (18")
22 ga. (18")
24 ga. (20")
22 ga. (20") / 170.0 lb.
207.4 lb.
158.0 lb.
186.0 lb.
147.3 lb.
179.6 lb.
142.8 lb.
174.2 lb. / 171.7 lb.
209.5 lb.
154.5 lb.
188.5 lb.
148.7 lb.
181.5 lb.
144.2 lb.
175.9 lb. / Grade 50 (50 ksi yield strength) structural steel with G90 coating, both conforming to ASTM A 653. / plain: regular spangle.
painted: two-coat 70% Kynar® 500/ Hylar® 5000; 0.5 mil two-coat polyester backer.
ALUMINUM-ZINC ALLOY COATED STEEL
24 ga. (12")
22 ga. (12")
24 ga. (16")
22 ga. (16")
24 ga. (18")
22 ga. (18")
24 ga. (20")
22 ga. (20") / 165.0 lb.
201.4 lb.
148.5 lb.
181.2 lb.
143.0 lb.
174.4 lb.
138.6 lb.
169.1 lb. / 166.7 lb.
203.4 lb.
150.0 lb.
183.0 lb.
144.4 lb.
176.2 lb.
140.0 lb.
170.8 lb. / Grade 50 (50 ksi yield strength) structural steel with AZ50 coating, both conforming to ASTM A 792. / plain: regular spangle.
painted: two-coat 70% Kynar® 500/ Hylar® 5000; 0.5 mil two-coat polyester backer.

Weights above include caps.

Jackson, GA (800) 884-4484

Grapevine, TX (800) 477-9066

Salem, OR (800) 477-8028

Headquarters - Lancaster, PA (800) 477-2741

SNAP-ON-BATTEN SPECIFICATIONS

PART I GENERAL

1.01SUMMARY

A. Section includes: Prefinished, prefabricated, mechanically seamed, structural standing seam roof system and accessories.

B.Related Sections

1.Metal decking

2.Rough carpentry, plywood, and underlayment

3.Insulation

4.Membrane roofing

5.Flashing and sheet metal

6.Joint sealers: sealants and caulk

7.Structural framing.

1.02REFERENCES

A.American Society for Testing and Materials (ASTM)

1.ASTM A 653: Steel Sheet, Zinc-Coated by the Hot Dip Process

2.ASTM A 792: Steel Sheet, Aluminum-Zinc Alloy Coated by the Hot Dip Process.

3.ASTM B 209: Aluminum and Aluminum Alloy Sheet and Plate.

B.Sheet Metal and Air Condition Contractors National Association, Inc. (SMACNA)

1.SMACNA Architectural Sheet Metal Manual, 1993 Edition.

C.American Iron and Steel Institute (AISI)

1.AISI Cold Formed Steel Design Manual

D.Metal Construction Association (MCA)

1.Preformed Metal Wall Guidelines

E.Code references

1.ASCE, Minimum Loads for Buildings and Other Structures

2.BOCANationalBuilding Code

3.UBCUniformBuilding Code

4.SBCStandardBuilding Code

1.03SYSTEM DESCRIPTION

A.Performance Requirements: Provide factory formed, prefinished, architectural metal roof system with concealed clips and snap on battens over a solid substrate. Panels to be manufactured in continuous lengths up ot 48’ (consult factory for longer lengths).

B.Structural Requirements: Engineer panels for structural properties in accordance with latest edition of American Iron and Steel Institute’s Cold Formed Steel Design Manual, using “effective width" concept and Aluminum Association’s Aluminum Design Manual.

C.The panel shall be installed over a solid deck.

1.04SUBMITTALS

A.Product Data: submit manufacturer's specifications, standard profile sheet, product data brochure and finish warranty.

B.Shop Drawings: shop drawings showing roof plan with layout of panels, clips, clip attachment, underlayment and sections of each flashing/trim condition shall be submitted for approval prior to fabrication. Drawings shall contain material type, metal thickness and finish. Drawings shall distinguish between factory and field fabrication.

C.Samples:

1.Submit sample 12" long x full width panel, showing proposed metal gauge, seam profile and specified finish.

2.Submit manufacturers standard colors for Architect's selection.

D.Certification: Submit manufacturer's certification that materials and finishes meet specification requirements.

1.05QUALITY ASSURANCE

A. Panel manufacturer shall have a minimum of ten (10) years of experience in manufacturing architectural roofing in a permanent stationary indoor facility.

B.Panel installer shall have a minimum of two (2) years experience in the installation of concealed clip architectural standing seam metal roofing and show evidence of successful completion of at least three (3) projects of similar size, scope, and complexity.

1.06DELIVERY, STORAGE, and HANDLING

A. Panels and flashings shall be protected and properly packaged to protect against transportation damage in transit to the jobsite.

B. Upon delivery, exercise care in unloading, stacking, moving, storing, and erecting panels and flashings to prevent twisting, bending, scratching, or denting.

C. Store panels and flashings in a safe, dry environment under a waterproof covering to prevent water damage. Allow for adequate ventilation to prevent condensation. Panels and flashings with strippable film shall not be stored in direct sunlight.

D.Upon installation immediately remove strippable film from panels and flashings. Protect panels and flashings from foot traffic and from all other trades.

1.07PROJECT CONDITIONS

A. Field dimensions shall be taken prior to fabrication to verify jobsite conditions.

B. Panels shall be installed over a solid substrate.

1.08WARRANTIES

A. Panel manufacturer shall provide a twenty (20) year warranty on the paint finish covering chalking, cracking, checking, chipping, blistering, peeling, flaking, and fading.

B.Applicator shall furnish written warranty for a two (2) year period from date of substantial completion of building covering repairs required to maintain roof and flashings in watertight conditions.

PART IIPRODUCTS

2.01PRODUCT DESCRIPTION

A. Snap-on Batten standing seam roof system as manufactured by Fabral, 3449 Hempland Road, Lancaster, PA 17601, ph.: 800-477-2741; fax: 800-283-4289.

B. The Snap-on-Batten panel shall have a seam height of 1 ½” and spaced 12”, 16”, 18”, or 20” o.c. The snap on batten cap will be 1 9/16” wide by 1 7/8” tall.

C. Roof panels shall use a one-piece roof clip allowing for thermal movement of the panel system.

2.02PRODUCT SUBSTITUTIONS

A. Requests to use alternate systems shall be submitted in writing to the project designer at least ten (10) days prior to bid date. Request shall demonstrate proposed substitution meets or exceeds specified performance requirements. Certified statements, samples and descriptive data shall be included in this submittal request.

B.Manufacturers listed in this section are prequalified manufacturers. Substitution of manufacturer's products for those specified shall not be allowed at anytime during construction.

SNAP-ON-BATTEN SPECIFICATIONS

2.03MATERIALS AND FINISHES

A.Roof panel materials

1.24 or 22 gauge, Grade 50 (50 ksi yield strength) structural steel with G90 (0.90 oz/ft.2) hot dipped galvanized coating, both conforming to ASTM A 653.

2.24 or 22 gauge, Grade 50 (50 ksi yield strength) structural steel with AZ50 (0.50 oz./ft.2) aluminum-zinc alloy coating, both conforming to ASTM A 792.

3.0.032" or 0.040, 3105-H14 or equal (20 ksi yield strength) aluminum alloy conforming to ASTM B 209.

B.Texture: panels shall be smooth.

C.Finish: paint shall be full strength 70% polyvinylidene fluoride (Kynar/Hylar* fluorocarbon) baked-on coating, factory applied prior to roll forming. The treatment shall be a two-coat system consisting of a single coat of 0.2 mil primer followed by a finish coat of 0.8 mil Kynar topcoat with a total dry film thickness of 1.0 mil ± 0.2 mil. The reverse side of the panels shall be treated with a back coat system consisting of a 0.2 mil primer with a 0.3 mil topcoat for a total dry film thickness 0.5 mil.

1.07ACCESSORIES

A.Concealed roof clips shall be made from one piece of 24 ga. steel and have spring-loaded flanges.

B.Flashing and Trim

1.All flashing and trim shall be of the same material, gauge, finish, and color as the roof panels and fabricated in accordance with standard SMACNA procedure and details.

2.Provide transition rib covers where roofing changes pitch.

3.Fabricate gutters and downspouts in the same gauge, material, finish, and color as the roof panels.

C.Fasteners

1.Clips to substrate: Screw shall be #10 diameter, low-profile pancake head, self tapping type, zinc-plated steel.

2.Flashings to panels: exposed screws shall be zinc plated with a #14 x 7/8" combination steel and neoprene washer, color to match panel.

3.Pop rivets: #43 stainless steel, color finish to match panel.

D.Sealants

1.Shall not contain oil, asbestos, or asphalt.

2.Field applied panel end sealant shall be mastic tape sealant.

3.Exposed sealant shall be one-part polyurethane joint sealant. Coordinate color with roof panels.

E.Closures

1.Ridge and hip closures shall be protected and supported by a formed metal closure manufactured from the same material, color, and finish as the panels.

2.Metal closures shall be factory-fabricated and field-cut as needed.

2.05RELATED MATERIALS

A.Refer to other sections listed in Related Sections paragraph for related materials.

2.06FABRICATION

A.Roof panels shall be formed in continuous lengths. Endlaps will not be allowed.

B.Panels shall to be roll formed on a stationary industrial type rolling mill to gradually shape the sheet metal. Portable rollformers, rented or owned by the installer, are not acceptable.

C.Fabricate flashings from the same material as the roof system.

2.07SOURCE QUALITY

A.Source Quality: obtain metal panels and accessories from a single manufacturer.

B.Fabrication tolerances: follow tolerances in MCA’s Preformed Metal Wall Guidelines.

C.Tests and inspections

D.Verification of performance

PART IIIEXECUTION

3.01MANUFACTURER’S INSTRUCTIONS

A.Compliance: Comply with manufacturer’s product data, including product technical bulletins, product catalog installation instructions, and product cartons for installation.

3.02EXAMINATION

A.Installer shall:

1.Inspect roof deck to verify that it complies with shop drawings and is smooth, even, sound, and free of depressions.

2.Report variations and potential problems in writing to the architect.

3.03INSTALLATION

A. Conform to the standard set forth in the SMACNA architectural sheet metal manuals and the approved shop drawings detailed for the project.

B. Install panels on solid substrate.

C. Install panels plumb, level, and straight with the seams parallel, conforming to the design as indicated.

D. Install panel system so it is watertight, without waves, warps, buckles or distortions, and allow for thermal movement considerations.

E.Abrasive devices shall not be used to cut on or near roof panel system.

F. Apply sealant tape or caulking as necessary at flashing and panel joints to prevent water penetration.

G. Remove any strippable film immediately upon exposure to direct sunlight.

H. Vapor retarder: The joints, perimter, and all openings shall be sealed per the manufacturer’s instructions to provide a continuous vapor retader.

I.Underlayment (solid substrate):

1.Provide one layer of 30# felt with horizontal overlaps and endlaps staggered between layers.

2.Provide ice and water shield membrane at all valley and eave conditions as well as any area at less than a 3:12 slope.

3.Lay parallel to ridge line with 2½" horizontal laps and 6" vertical laps.

3.04CLEANING

A.Dispose of excess materials and debris from jobsite.

B. Remove filings, grease, stains, marks, or excess sealants from roof panel system to prevent staining.

C. Protect work from damage from other trades until final acceptance.

* Kynar® 500 is a registered trademark of Atofina Chemicals.

Hylar® 5000 is a registered trademark of Ausimont USA, Inc.